WO2018155518A1 - Construction de plaque de verre - Google Patents

Construction de plaque de verre Download PDF

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Publication number
WO2018155518A1
WO2018155518A1 PCT/JP2018/006321 JP2018006321W WO2018155518A1 WO 2018155518 A1 WO2018155518 A1 WO 2018155518A1 JP 2018006321 W JP2018006321 W JP 2018006321W WO 2018155518 A1 WO2018155518 A1 WO 2018155518A1
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WO
WIPO (PCT)
Prior art keywords
glass plate
plate structure
glass
plates
liquid layer
Prior art date
Application number
PCT/JP2018/006321
Other languages
English (en)
Japanese (ja)
Inventor
順 秋山
田原　慎哉
大輔 内田
研人 櫻井
Original Assignee
Ａｇｃ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ａｇｃ株式会社 filed Critical Ａｇｃ株式会社
Priority to EP18758446.1A priority Critical patent/EP3588976A4/fr
Priority to CN201880012829.XA priority patent/CN110313185B/zh
Priority to JP2019501391A priority patent/JPWO2018155518A1/ja
Publication of WO2018155518A1 publication Critical patent/WO2018155518A1/fr
Priority to US16/549,040 priority patent/US11122370B2/en
Priority to JP2022003151A priority patent/JP7231071B2/ja

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/08—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers separated by air or other fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B32B17/10045—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets with at least one intermediate layer consisting of a glass sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/05—Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/08—Glass
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/023—Diaphragms comprising ceramic-like materials, e.g. pure ceramic, glass, boride, nitride, carbide, mica and carbon materials

Definitions

  • the present invention relates to a glass plate structure having good acoustic performance, and also relates to a diaphragm and an opening member using the glass plate structure.
  • cone paper or resin is used as a diaphragm for a speaker or a microphone. Since these materials have a large loss coefficient and are less likely to cause resonance vibration, they are said to have good sound reproduction performance in the audible range. However, since these materials all have low sound velocity values, it is difficult for material vibrations to follow the sound wave frequency when excited at high frequencies, and split vibrations are likely to occur. Therefore, a desired sound pressure is difficult to be generated particularly in a high frequency region.
  • the band that is required to be played is a high-frequency range of 20 kHz or higher, and although it is a band that is difficult to hear with human ears, there are things that are closer to emotions, such as a strong sense of reality. Therefore, it is desirable that the sound wave vibration in the band can be faithfully reproduced.
  • cone paper or resin instead of cone paper or resin, it is conceivable to use materials such as metals, ceramics, and glass that have a high speed of sound propagation to the material.
  • materials such as metals, ceramics, and glass that have a high speed of sound propagation to the material.
  • these materials generally have a loss factor as small as about 1/10 to 1/100 of paper, unintended reverberation tends to remain.
  • a significant timbre degradation can occur due to the occurrence of a resonance mode when excited at the natural frequency of the member.
  • Patent Document 1 As a diaphragm for a speaker, one using a glass (Patent Document 1) and a laminated glass having a polybutyl polymer layer having a thickness of 0.5 mm between two glass plates are known (Non-Patent Document 1). Patent Document 1). However, the vibration plate has a problem that significant timbre degradation occurs due to resonance.
  • an object of the present invention is to provide a glass plate structure having good acoustic performance.
  • the present inventor has found that the above problem can be solved by using a predetermined glass plate structure, and has completed the present invention.
  • the present invention is as follows.
  • a glass plate structure including at least two plates and a liquid layer held between the two plates, wherein at least one of the two plates is a glass plate.
  • the glass plate constituting body constitutes a stepped portion having a step shape in a cross-sectional view because the end surfaces of the two plates are displaced from each other, and at least the liquid layer is sealed in the stepped portion.
  • the glass plate structure further provided with the sealing material provided so that it may stop.
  • the sealing material is in close contact with an end surface of one plate, an end surface of the liquid layer, and a main surface of the other plate in the stepped portion.
  • the sealing material has an outline extending in an L shape in a sectional view along an end surface of the one plate, an end surface of the liquid layer, and a main surface of the other plate, ⁇ 2 > The glass plate structure described in>.
  • ⁇ 4> The glass plate structure according to any one of ⁇ 1> to ⁇ 3>, wherein the sealing material has a tapered surface.
  • ⁇ 5> The glass plate structure according to any one of ⁇ 1> to ⁇ 4>, wherein the specific elastic modulus of the glass plate is 2.5 ⁇ 10 7 m 2 / s 2 or more.
  • ⁇ 6> From the above ⁇ 1>, the viscosity coefficient of the liquid layer at 25 ° C.
  • the sealing material is polyvinyl acetate, polyvinyl chloride, polyvinyl alcohol, ethylene copolymer, polyacrylate, cyanoacrylate, saturated polyester, polyamide, linear polyimide, melamine ⁇ 1> to ⁇
  • ⁇ 12> The glass plate structure according to any one of ⁇ 1> to ⁇ 11>, further including another glass plate.
  • ⁇ 13> The glass plate structure according to any one of ⁇ 1> to ⁇ 12>, wherein at least one glass plate is a glass plate made of laminated glass.
  • ⁇ 14> The glass plate structure according to any one of ⁇ 1> to ⁇ 13>, wherein a coating or a film is formed on at least one outermost surface of the glass plate structure.
  • ⁇ 15> The glass plate structure according to any one of ⁇ 1> to ⁇ 14>, wherein the glass plate structure has a curved shape.
  • ⁇ 16> A diaphragm including the glass plate structure according to any one of ⁇ 1> to ⁇ 15> and at least one vibrator disposed on one or both surfaces of the glass plate structure.
  • ⁇ 17> The diaphragm according to ⁇ 16>, wherein the outer circumference has a length of 1 m or more.
  • ⁇ 18> An opening member using the glass plate structure according to any one of ⁇ 1> to ⁇ 15> or the diaphragm according to ⁇ 16> or ⁇ 17>.
  • a diaphragm used for a speaker, a microphone, an earphone, a mobile device, or the like sound reproducibility is improved from a low frequency range to a high frequency range due to low resonance characteristics. It is also possible to ensure strength. Furthermore, in construction and vehicle opening member applications, etc., it is possible to make it difficult for resonance to occur by using high vibration damping capability, and to suppress the generation of abnormal noise due to resonance.
  • FIG. 1A is a plan view of a glass plate structure according to the first embodiment of the present invention
  • FIG. 1B is a cross-sectional view taken along the line II in FIG. 1A
  • FIG.1 (c) is an enlarged view of C part in FIG.1 (b).
  • FIG. 2 is a cross-sectional view showing another example of the glass plate structure of the present invention.
  • FIG. 3 is a cross-sectional view showing another example of the glass plate structure of the present invention.
  • FIG. 4 is a cross-sectional view showing still another example of the glass plate structure of the present invention.
  • FIG. 5 is a perspective view showing still another example of the glass plate structure of the present invention.
  • 6A is a plan view of the example shown in FIG. 5, and FIG.
  • FIG. 6B is a cross-sectional view taken along the line II-II in FIG. 6A.
  • FIG. 7A is a plan view of a glass plate structure according to the second embodiment of the present invention, and FIG. 7B is a cross-sectional view taken along line II in FIG. 7A.
  • FIG. 8A is a plan view of a glass plate structure according to the third embodiment of the present invention, and FIG. 8B is a cross-sectional view taken along the line II in FIG. 8A.
  • FIG. 9A is a plan view of a glass plate structure according to the fourth embodiment of the present invention, and FIG. 9B is a cross-sectional view taken along the line II in FIG. 9A. .
  • FIG. 10A is a plan view of a glass plate structure according to the fifth embodiment of the present invention, and FIG. 10B is a cross-sectional view taken along line II in FIG. 10A.
  • FIG. 11A is a plan view of a glass plate structure according to the sixth embodiment of the present invention, and FIG. 11B is a cross-sectional view taken along the line II in FIG. 11A.
  • FIG. 12A is a plan view of a glass plate structure according to a seventh embodiment of the present invention, and FIG. 12B is a cross-sectional view taken along line II in FIG. .
  • FIG. 13 (a) is a plan view of a glass plate structure according to an eighth embodiment of the present invention, and FIG.
  • FIG. 13 (b) is a cross-sectional view taken along the line II in FIG. 13 (a).
  • FIG. 14A is a cross-sectional view showing an example of an end face chamfered portion subjected to R chamfering
  • FIG. 14B is a cross-sectional view showing an example of an end face chamfered portion subjected to oblique chamfering
  • FIG. 15A is a cross-sectional view showing an example in which the seal portion has an extended portion extending so as to enter between the first plate and the second plate
  • FIG. 15B is an end surface of the first plate. It is sectional drawing which shows the example to which two diagonal chamfering was given.
  • ⁇ indicating a numerical range is used to mean that the numerical values described before and after it are included as a lower limit value and an upper limit value.
  • the glass plate structure according to the present invention includes at least two plates and a liquid layer held between the two plates, and at least one of the two plates is a glass plate It is a construct.
  • the glass plate constituting body constitutes a stepped portion having a stepped shape in a cross-sectional view because the end surfaces of the two plates are shifted from each other, and at least the liquid layer is sealed in the stepped portion. And further provided with a sealing material.
  • the glass plate constituting body constitutes a stepped portion having a step shape in a cross-sectional view because the end faces of the two plates are shifted from each other.
  • the sealing material provided so that at least a liquid layer may be sealed is provided in the level
  • the sealing material is in close contact with the end surface of one plate, the end surface of the liquid layer, and the main surface of the other plate at the stepped portion.
  • the sealing material has an outline extending in an L shape in a sectional view.
  • the “main surface” refers to the surface of the portion where the other plate protrudes from the one plate.
  • the end surface and the main surface may be curved when chamfered.
  • the L-shaped L-shaped angle is not limited to a right angle (90 °), and the angle is preferably in the range of greater than 0 ° and smaller than 180 °, and in the range of 30 ° to 150 °. Is more preferably in the range of 60 ° to 120 °, and still more preferably in the range of 80 ° to 100 °.
  • the sealing material may be filled in a chamfered portion formed by chamfering the end surface of the one plate in the L-shaped outline.
  • the sealing material has a tapered surface.
  • the “tapered surface” refers to a surface that constitutes an inclined surface that is opposed to the surface of the plate (the end surface of one plate or the main surface of the other plate) in the stepped portion in an oblique state. Thereby, the same effect as having processed the glass plate structure can be acquired.
  • Glass plate structure according to the present invention is the loss factor at 25 ° C. 1 ⁇ 10 -2 or more and longitudinal sound velocity of the plate thickness direction of at least one glass plate of 5.5 ⁇ 10 3 m / S or more is preferable.
  • a large loss coefficient means that the vibration damping ability is large.
  • the loss factor a value calculated by the half-width method is used. Represented by ⁇ W / f ⁇ , where W is the frequency width of a point at which the resonance frequency f of the material is -3 dB lower than the peak value of amplitude h (that is, the point at the maximum amplitude of -3 [dB]). Define the value as the loss factor. In order to suppress the resonance, it is only necessary to increase the loss factor, that is, the frequency width W becomes relatively large with respect to the amplitude h, which means that the peak becomes broad.
  • the loss factor is a specific value of the material and the like, and for example, in the case of a single glass plate, it varies depending on the composition and relative density.
  • the loss factor can be measured by a dynamic elastic modulus test method such as a resonance method.
  • Longitudinal wave sound velocity value refers to the speed at which longitudinal waves propagate in the diaphragm.
  • the longitudinal wave velocity value and Young's modulus can be measured by an ultrasonic pulse method described in Japanese Industrial Standard (JIS-R1602-1995).
  • the glass plate structure which concerns on this invention can implement
  • the loss factor can be further increased by setting the viscosity and surface tension of the liquid layer within a suitable range. This is considered to be caused by the fact that the pair of plates do not adhere to each other and the vibration characteristics as the respective plates continue to be maintained unlike the case where the pair of plates are provided via the adhesive layer.
  • the liquid layer preferably has a viscosity coefficient of 1 ⁇ 10 ⁇ 4 to 1 ⁇ 10 3 Pa ⁇ s at 25 ° C. and a surface tension of 15 to 80 mN / m at 25 ° C. If the viscosity is too low, it will be difficult to transmit the vibration, and if it is too high, the pair of plates located on both sides of the liquid layer will stick together to show the vibration behavior as a single plate. It becomes difficult to be done. On the other hand, if the surface tension is too low, the adhesion between the plates is reduced, making it difficult to transmit vibration. If the surface tension is too high, the pair of plates located on both sides of the liquid layer are easily fixed to each other, and the vibration behavior as a single plate is exhibited, so that the resonance vibration is hardly attenuated.
  • the viscosity coefficient of the liquid layer at 25 ° C. is more preferably 1 ⁇ 10 ⁇ 3 Pa ⁇ s or more, and further preferably 1 ⁇ 10 ⁇ 2 Pa ⁇ s or more. Further, it is more preferably 1 ⁇ 10 2 Pa ⁇ s or less, and further preferably 1 ⁇ 10 2 Pa ⁇ s or less.
  • the surface tension of the liquid layer at 25 ° C. is more preferably 17 mN / m or more, and further preferably 30 mN / m or more.
  • the viscosity coefficient of the liquid layer can be measured with a rotational viscometer or the like.
  • the surface tension of the liquid layer can be measured by a ring method or the like.
  • the liquid layer preferably has a vapor pressure of 1 ⁇ 10 4 Pa or less at 25 ° C. and 1 atm, more preferably 5 ⁇ 10 3 Pa or less, and further preferably 1 ⁇ 10 3 Pa or less.
  • a thinner liquid layer is preferable from the viewpoint of maintaining high rigidity and transmitting vibrations.
  • the thickness of the liquid layer is preferably 1/10 or less of the total thickness of the two plates, more preferably 1/20 or less, 1/30 or less is further preferable, 1/50 or less is more preferable, 1/70 or less is further preferable, and 1/100 or less is particularly preferable.
  • the thickness of the liquid layer is preferably 100 ⁇ m or less, more preferably 50 ⁇ m or less, further preferably 30 ⁇ m or less, still more preferably 20 ⁇ m or less, and more preferably 15 ⁇ m or less. Further preferred is 10 ⁇ m or less.
  • the lower limit of the thickness of the liquid layer is preferably 0.01 ⁇ m or more from the viewpoint of film forming properties and durability.
  • the liquid layer is chemically stable, and it is preferable that the liquid layer and the two plates located on both sides of the liquid layer do not react.
  • “Chemically stable” means, for example, a material that is hardly altered (deteriorated) by light irradiation, or that does not undergo solidification, vaporization, decomposition, discoloration, chemical reaction with glass, etc. at least in the temperature range of ⁇ 20 to 70 ° C. Means.
  • components of the liquid layer include water, oil, organic solvents, liquid polymers, ionic liquids, and mixtures thereof. More specifically, propylene glycol, dipropylene glycol, tripropylene glycol, straight silicone oil (dimethyl silicone oil, methylphenyl silicone oil, methyl hydrogen silicone oil), modified silicone oil, acrylic acid polymer, liquid polybutadiene, glycerin Examples thereof include pastes, fluorine-based solvents, fluorine-based resins, acetone, ethanol, xylene, toluene, water, mineral oil, and mixtures thereof.
  • the main component is propylene glycol or silicone oil. More preferred.
  • the liquid layer is preferably a uniform fluid.
  • the slurry is effective when the design and functionality such as coloring and fluorescence are imparted to the glass plate structure.
  • the content of the powder in the liquid layer is preferably 0 to 10% by volume, more preferably 0 to 5% by volume.
  • the particle size of the powder is preferably 10 nm to 10 ⁇ m, more preferably 0.5 ⁇ m or less.
  • the liquid layer may contain a fluorescent material. It may be a slurry-like liquid layer in which the fluorescent material is dispersed as a powder, or a uniform liquid layer in which the fluorescent material is mixed as a liquid. Thereby, optical functions, such as light absorption and light emission, can be imparted to the glass plate structure.
  • At least two (at least a pair) plates are provided so as to sandwich the liquid layer from both sides. At least one of the two plates is a glass plate. In such a configuration, when any plate resonates, the presence of the liquid layer prevents the other plate from resonating or can attenuate the resonance fluctuation of the other plate. Can increase the loss factor as compared to the case of a single glass plate.
  • the peak top value of the resonance frequency of one plate and the other plate is preferably different, and the resonance frequency ranges are preferably not overlapping.
  • the resonance frequency ranges are preferably not overlapping.
  • the other plate Since the vibrations are not synchronized, the resonance is canceled to some extent, so that a higher loss factor can be obtained than in the case of the glass plate alone.
  • the resonance of the lighter plate can be suppressed by the heavier plate, but it is difficult to suppress the resonance of the heavier plate by the lighter plate. That is, if the mass ratio is biased, the resonance vibrations cannot be canceled in principle due to the difference in inertia force.
  • the mass ratio of the two plates represented by (one A / the other plate) is preferably 0.8 to 1.25 (8/10 to 10/8), and 0.9 to 1.1 (9 / 10 to 10/9) is more preferable, and 1.0 (10/10, mass ratio 0) is further preferable.
  • the thinner the one plate and the other plate are, the more easily the plates adhere to each other through the liquid layer, and the plates can be vibrated with less energy. Therefore, in the case of diaphragm use such as a speaker, the thinner the plate, the better.
  • the thickness of each of the two plates is preferably 15 mm or less, more preferably 10 mm or less, further preferably 5 mm or less, still more preferably 3 mm or less, particularly preferably 1.5 mm or less, and 0.8 mm or less. Particularly preferred.
  • it is too thin the influence of surface defects on the plate becomes prominent and cracks are likely to occur, and it is difficult to reinforce, so 0.01 mm or more is preferable, and 0.05 mm or more is more preferable.
  • the plate thickness of one plate and the other plate is preferably 0.5 to 15 mm, and 0.8 to 10 mm. More preferably, the thickness is 1.0 to 8 mm.
  • At least one of the one plate and the other plate has a larger loss coefficient, which increases vibration attenuation as a glass plate structure, and is preferable for use as a vibration plate.
  • the loss coefficient at 25 ° C. of the plate is preferably 1 ⁇ 10 ⁇ 4 or more, more preferably 3 ⁇ 10 ⁇ 4 or more, and further preferably 5 ⁇ 10 ⁇ 4 or more.
  • the upper limit is not particularly limited, but is preferably 5 ⁇ 10 ⁇ 3 or less from the viewpoint of productivity and manufacturing cost.
  • the loss factor of a board can be measured by the method similar to the loss coefficient in a glass plate structure.
  • the longitudinal wave sound velocity value of the plate is preferably 5.5 ⁇ 10 3 m / s or more, more preferably 5.7 ⁇ 10 3 m / s or more, and 6.0 ⁇ 10 3 m / s or more. Further preferred.
  • the upper limit is not particularly limited, but is preferably 7.0 ⁇ 10 3 m / s or less from the viewpoint of plate productivity and raw material cost.
  • the sound speed value of a board can be measured by the same method as the longitudinal wave sound speed value in a glass plate structure.
  • the one plate and the other plate is formed of a glass plate.
  • the material of the other one plate is arbitrary, and various materials such as a resin plate made of resin other than glass and a ceramic plate made of ceramic can be adopted. From the viewpoint of design and workability, it is preferable to use a resin plate or a composite material thereof, and it is particularly preferable that the resin plate uses an acrylic resin, a polyimide resin, a polycarbonate resin, a PET resin, or an FRP material. From the viewpoint of vibration characteristics, it is preferable to use a ceramic material with high rigidity.
  • ceramics and single crystal materials such as Al 2 O 3 , SiC, Si 3 N 4 , AlN, mullite, zirconia, yttria, and YAG are used. More preferred. Further, the ceramic material is particularly preferably a light-transmitting material.
  • the other plate is preferably a glass plate.
  • composition of the glass plate which comprises at least 1 board is not specifically limited, For example, it is preferable that it is the following range by the mass% of an oxide basis. SiO 2 : 40 to 80% by mass, Al 2 O 3 : 0 to 35% by mass, B 2 O 3 : 0 to 15% by mass, MgO: 0 to 20% by mass, CaO: 0 to 20% by mass, SrO: 0 To 20 mass%, BaO: 0 to 20 mass%, Li 2 O: 0 to 20 mass%, Na 2 O: 0 to 25 mass%, K 2 O: 0 to 20 mass%, TiO 2 : 0 to 10 mass% %, And ZrO 2 : 0 to 10% by mass.
  • the above composition accounts for 95% by mass or more of the entire glass.
  • the composition of the glass plate is more preferably in the following range. SiO 2 : 55 to 75 mass%, Al 2 O 3 : 0 to 25 mass%, B 2 O 3 : 0 to 12 mass%, MgO: 0 to 20 mass%, CaO: 0 to 20 mass%, SrO: 0 To 20 mass%, BaO: 0 to 20 mass%, Li 2 O: 0 to 20 mass%, Na 2 O: 0 to 25 mass%, K 2 O: 0 to 15 mass%, TiO 2 : 0 to 5 mass% %, And ZrO 2 : 0 to 5% by mass.
  • the above composition accounts for 95% by mass or more of the entire glass.
  • the specific gravity of the glass plate is preferably 2.8 or less, more preferably 2.6 or less, and even more preferably 2.5 or less. Although a minimum is not specifically limited, It is preferable that it is 2.2 or more.
  • the greater the specific modulus which is the value obtained by dividing the Young's modulus of the glass plate by the density, can increase the rigidity of the glass plate.
  • the specific elastic modulus of the glass plate is preferably 2.5 ⁇ 10 7 m 2 / s 2 or more, more preferably 2.8 ⁇ 10 7 m 2 / s 2 or more, and 3.0 ⁇ 10 7 m 2. / S 2 or more is even more preferable.
  • the upper limit is not particularly limited, it is preferable from the viewpoint of moldability during glass production is 4.0 ⁇ 10 7 m 2 / s 2 or less.
  • the glass plate structure according to the present invention includes at least two plates and a liquid layer held between the two plates, and at least one of the two plates is a glass plate It is a construct.
  • the glass plate constituting body constitutes a stepped portion having a stepped shape in a cross-sectional view because the end surfaces of each of the two plates are shifted, that is, protruded, and at least the liquid layer is formed in the stepped portion. Further provided is a sealing material provided for sealing.
  • the protrusion amount of one of the two plates in the stepped portion is preferably 0. 0 based on the ratio to the total plate thickness of the two plates. It is preferably 1 or more times, more preferably 0.2 or more times, and further preferably 0.5 or more times. Further, it is preferably 10 times or less, more preferably 5 times or less, and further preferably 2 times or less.
  • the amount of protrusion is preferably 0.1 mm or more, more preferably 0.2 mm or more, and further preferably 0.5 mm or more, in terms of the width of the protrusion. Further, it is preferably 30 mm or less, more preferably 15 mm or less, and further preferably 7.5 mm or less.
  • the lower limit of the protrusion amount specified here is to consider the adhesive strength of the sealing material to the plate, the peel strength of the two plates, the bonding workability, etc., and the upper limit of the protrusion amount exclusively considers vibration characteristics and the like. Is.
  • the protrusion amount is indicated by the distance between the extreme end of one plate and the extreme end of the other plate.
  • the sealing material is in close contact with the end surface of one plate, the end surface of the liquid layer, and the main surface of the other plate at the stepped portion.
  • the sealing material has an outline extending in an L shape in a sectional view.
  • the sealing material has a tapered surface. Thereby, the same effect as having processed the glass plate structure can be acquired.
  • Sealing materials are polyvinyl acetate, polyvinyl chloride, polyvinyl alcohol, ethylene copolymer, polyacrylate, cyanoacrylate, saturated polyester, polyamide, linear polyimide, melamine resin, urea resin It is preferable to include at least one selected from the group consisting of phenol resin, epoxy-based, polyurethane-based, unsaturated polyester-based, reactive acrylic-based, rubber-based, silicone-based and modified silicone-based.
  • the visible light transmittance determined in accordance with Japanese Industrial Standard is preferably 60% or more, more preferably 65% or more, and further preferably 70% or more.
  • a translucent member uses, such as an opening member for transparent speakers, a transparent microphone, construction, a vehicle, etc. are mentioned, for example.
  • the difference between the refractive index of the liquid layer and the refractive index of the pair of glass plates in contact with the liquid layer is preferably 0.2 or less, more preferably 0.1 or less, and even more preferably 0.01 or less.
  • At least one glass plate may be used, but two or more glass plates may be used.
  • glass plates having different compositions may be used, glass plates having the same composition may be used, or glass plates having the same composition and glass plates having different compositions may be used in combination.
  • the mass and thickness of the glass plate may be all different, all the same, or some different.
  • a physical tempered glass plate or a chemically tempered glass plate can be used as at least one of the glass plates constituting the glass plate constituting body. This is useful to prevent breakage of the glass plate structure.
  • the glass plate located on the outermost surface of the glass plate structure is preferably a physically tempered glass plate or a chemically tempered glass plate, and all of the constituting glass plates are physically strengthened.
  • a glass plate or a tempered glass plate is more preferable.
  • the glass plate located on the outermost surface of the glass plate structure is preferably crystallized glass or phase-separated glass.
  • Coating and film application are suitable for preventing scratches, for example.
  • the thickness of the coating or film is preferably 1/5 or less of the thickness of the surface glass plate.
  • Conventionally known materials can be used for the coating and film.
  • the coating include water-repellent coating, hydrophilic coating, water-sliding coating, oil-repellent coating, anti-reflection coating, thermal barrier coating, and high-reflection coating. It is done.
  • the film include a glass scattering prevention film, a color film, a UV cut film, an IR cut film, a heat shield film, and an electromagnetic wave shield film.
  • the shape of the glass plate structure can be appropriately designed depending on the application, and may be a flat plate shape or a curved surface shape.
  • the material of an enclosure or a baffle board is not specifically limited, It is preferable to use the glass plate structure of this invention.
  • the frame is useful when it is desired to improve the rigidity of the glass plate structure or to maintain a curved surface shape.
  • Conventionally known materials can be used as the material of the frame.
  • ceramics such as Al 2 O 3 , SiC, Si 3 N 4 , AlN, mullite, zirconia, yttria, YAG, etc., single crystal materials, composites such as FRP, etc.
  • Materials, resin materials such as acrylic and polycarbonate, glass materials, wood, and the like can be used.
  • the weight of the frame to be used is preferably 20% or less, more preferably 10% or less of the weight of the glass plate.
  • a seal member may be provided between the glass plate structure and the frame. Furthermore, you may seal at least one part of the outer peripheral end surface of a glass plate structure with the sealing member which does not prevent the vibration of a glass plate structure.
  • the sealing member rubber, resin, gel or the like having high elasticity can be used.
  • the resin for the seal member acrylic, cyanoacrylate, epoxy, silicone, urethane, phenol and the like can be used.
  • the curing method include one-component type, two-component mixed type, heat curing, ultraviolet curing, and visible light curing.
  • a thermoplastic resin (hot melt bond) can also be used. Examples include ethylene vinyl acetate, polyolefin, polyamide, synthetic rubber, acrylic, and polyurethane.
  • the thickness of the sealing member is preferably 10 ⁇ m or more and 5 times or less of the total thickness of the glass plate constituting body, and more preferably 50 ⁇ m or more and thinner than the total thickness of the glass plate constituting body.
  • the above-mentioned sealing member can be applied to at least a part of the surfaces of the glass plates facing each other as long as the effects of the present invention are not impaired.
  • the area of the seal member application part is preferably 20% or less, more preferably 10% or less, and particularly preferably 5% or less of the area of the liquid layer so as not to hinder vibration. .
  • the edge portion of the glass plate can be processed into an appropriate shape. For example, by chamfering the end of at least one glass plate (the cross-sectional shape of the glass plate is a trapezoidal shape) or R-chamfering (the cross-sectional shape of the glass plate is a substantially arc shape), the contact area between the sealing member and the glass is increased. The adhesive strength between the sealing member and the glass can be improved.
  • the present invention relates to a diaphragm including the glass plate structure and a vibrator, and an opening member using the glass plate structure.
  • the diaphragm for example, by installing one or more vibration elements or vibration detection elements (vibrators) on one or both sides of the glass plate constituting body, it can be used for vibration bodies such as speakers, microphones, earphones, mobile devices, and the like. Can function as a chassis speaker.
  • vibration bodies such as speakers, microphones, earphones, mobile devices, and the like.
  • the position of the vibrator with respect to the diaphragm is the central part of the structure.
  • the vibrator since this material has high sound speed and high attenuation performance, the vibrator may be installed at the end of the glass plate structure. .
  • the diaphragm according to the present invention By using the diaphragm according to the present invention, it is possible to easily reproduce sound in a high frequency region that has been difficult to reproduce in the past. Moreover, since the freedom degree in a magnitude
  • sound or vibration is sampled by a sound collecting microphone or vibration detector installed on or near the surface of the glass plate structure, and the sound sampled by causing the glass plate structure to generate vibration in the same phase or opposite phase. Alternatively, the vibration can be amplified or canceled.
  • the vibration can be accurately amplified or canceled by correcting the amplitude and phase of the control signal using the control filter.
  • a least square method (LMS) algorithm can be used.
  • all or at least one glass plate of multilayer glass is the glass plate structure of the present invention, and the vibration level of the plate on the side where the sonic vibration to be controlled flows in or between the glasses is present.
  • the sound pressure level of the space to be sampled is sampled, and the signal is appropriately corrected by the control filter, and then output to the vibration element on the glass plate structure installed on the side where the sound wave vibration flows out.
  • this diaphragm includes, for example, full-range speakers, low-frequency sound reproduction speakers in the 15 Hz to 200 Hz band, high-frequency sound reproduction speakers in the 10 kHz to 100 kHz band, and large speakers with a diaphragm area of 0.2 m 2 or more.
  • a side mirror, a sun visor, an instrument panel, a dashboard, a ceiling, a door, and other interior panels that function as speakers can be used.
  • These can also function as a microphone and a diaphragm for active noise control.
  • Other applications include diaphragms for ultrasonic generators, sliders for ultrasonic motors, low-frequency generators, vibrators that propagate acoustic vibrations in liquids, water tanks and containers using them, vibration elements, vibration detection elements It can be used as an actuator material for a vibration damping device.
  • an opening member used for a construction / transportation machine or the like can be cited.
  • a glass plate structure that does not resonate easily in the frequency band of noise generated from a drive unit such as a vehicle, an aircraft, a ship, or a generator is used, a particularly excellent generation suppression effect can be obtained with respect to the noise.
  • functions, such as IR cut, UV cut, coloring can also be provided to a glass plate structure.
  • a diaphragm in which one or more vibration elements or vibration detection elements (vibrators) are installed on one side or both sides of a glass plate structure can also function as a speaker or a microphone.
  • sound or vibration is sampled by a sound collecting microphone or vibration detector installed on or near the surface of the glass plate structure, and the sound sampled by causing the glass plate structure to generate vibration in the same phase or opposite phase.
  • the vibration can be amplified or canceled.
  • it can be used as an interior speaker, an exterior speaker, a vehicle windshield, a side glass, a rear glass or a roof glass having a sound insulation function. At this time, only a specific sound wave vibration may be transmitted or blocked. Moreover, it can also be used as a vehicle window, a structural member, and a decorative board, which are improved in water repellency, snow resistance, ice resistance and antifouling properties by sonic vibration. Specifically, it can be used as a window glass and a mirror for automobiles, as well as a lens, a sensor, and a cover glass thereof.
  • a window glass, a door glass, a roof glass, an interior material, an exterior material, a decorative material, a structural material, an outer wall, a sound insulation plate and a sound insulation wall, and a cover glass for solar cells, which function as a vibration plate and a vibration detection device Can be used. You may make them function as an acoustic reflection (reverberation) board.
  • the water repellency, snow resistance and antifouling properties can also be improved by sonic vibration.
  • the glass plate structure according to the present invention can be obtained by forming a liquid layer between a pair of glass plates.
  • the method for forming a liquid layer between a pair of glass plates is not particularly limited. For example, a method in which a liquid layer is formed on the surface of a glass plate and another glass plate is placed thereon, and a glass in which a liquid layer is formed on the surface. A method of bonding the plates together, a method of pouring a liquid layer through a gap between two glass plates, and the like can be mentioned.
  • the formation of the liquid layer is not particularly limited, and for example, the liquid constituting the liquid layer can be applied to the surface of the glass plate by a technique such as dispenser, spin coating, die coating, screen printing, or ink jet printing.
  • FIG. 1 shows a glass plate assembly 10 according to a first embodiment of the present invention
  • FIG. 1 (a) is a plan view of the glass plate assembly of the first embodiment
  • FIG. 1A is a cross-sectional view taken along line II in FIG. 1A
  • FIG. 1C is an enlarged view of a portion C in FIG. 1B.
  • the glass plate structure 10 includes at least two plates, a first plate (one or the other plate) 11 and a second plate (the other or one plate) 12, a first plate 11 and a second plate. And a liquid layer 16 held between the plates 12. At least one of the two plates, the first plate 11 and the second plate 12, is formed of a glass plate.
  • the end surfaces of the first plate 11 and the second plate 12 which are the two plates are shifted from each other, so that a staircase is obtained in a sectional view.
  • the step part 50 which exhibits a shape is comprised.
  • the sealing material 31 is provided so that the liquid layer 16 may be sealed at least.
  • the sealing material 31 is in close contact with the end surface 11 a of the first plate 11, the end surface 16 a of the liquid layer 16, and the main surface 12 a of the second plate 12 in the step portion 50. With such a configuration, the liquid layer 16 is sealed by the sealing material 31, and the leakage of the liquid layer 16 is prevented, and the bonding of the first plate 11, the liquid layer 16, and the second plate 12 is strengthened, The intensity
  • the end surface 11 a of the first plate 11 and the end surface 16 a of the liquid layer 16 are configured to be perpendicular to the main surface 12 a of the second plate 12 in the stepped portion 50.
  • the sealing material 31 has an outline extending in an L shape along the stepped portion 50 in a sectional view.
  • the sealing material 31 has the taper surface 31a.
  • the edge of the glass plate structure 10 may be tapered or the like, but by adopting such a shape of the sealing material 31, the same effect as that obtained by processing the glass plate structure can be obtained. it can.
  • FIG. 2 is a cross-sectional view showing another example of the glass plate structure 10.
  • a cover layer 21 such as a coating or a film is formed on the outermost surface of the glass plate structure 10 of FIG.
  • Various functions can be given by the cover layer 21.
  • FIG. 3 is a cross-sectional view showing another example of the glass plate structure 10.
  • the glass plate structure 10 of FIG. 3 includes another glass plate 13 in addition to the structure of the glass plate structure 10 of FIG. With such a configuration, the strength of the glass plate structure 10 can be increased.
  • the sealing member 32 is provided in the edge part of the glass plate structure 10, and the liquid layer 16 is sealed. Instead of the seal member 32, a seal tape 40 (see FIG. 7) may be attached.
  • FIG. 4 is a cross-sectional view showing still another example of the glass plate structure 10.
  • the glass plate structure 10 of FIG. 4 is obtained by processing the glass plate structure 10 of FIG. 1 into a curved shape. With such a shape, it is possible to increase the degree of freedom in design of various devices (vibrating plates, opening members, etc.) in which the glass plate structure is used.
  • FIG. 5 and 6 show still another example of the glass plate structure 10, FIG. 5 is a perspective view of the example, FIG. 6 (a) is a plan view of the example of FIG. FIG. 6B is a sectional view taken along line II-II in FIG.
  • a frame (frame) 30 is provided on the outer edge of the glass plate structure 10, at least on the outermost surface of the glass plate structure 10. The rigidity of the glass plate structure 10 is further improved by the frame 30. Moreover, when it applies to the glass plate structure 10 of FIG. 4, a curved surface shape can be hold
  • a seal member 32 is provided between the glass plate constituting body 10 and the frame 30. The seal member 32 has elasticity, so that the frame 30 can be easily attached to the glass plate structure 10.
  • FIG. 7 shows the glass plate structure 10 of the second embodiment of the present invention
  • FIG. 7 (a) is a plan view of the glass plate structure of the second embodiment of the present invention
  • FIG. ) Is a cross-sectional view taken along the line II in FIG.
  • the first plate 11 is slightly smaller than the second plate 12, and all four sides of the rectangular (square or rectangular) glass plate structure 10 in plan view, that is, the glass plate structure 10.
  • a stepped portion 50 is formed on the entire periphery. Therefore, the sealing material 31 is provided on the entire periphery of the glass plate structure 10.
  • the step part 50 is formed in 3 sides in the rectangular glass plate structure 10 in planar view, and the sealing material 31 is provided in 3 sides. And the width
  • a seal tape 40 is affixed to the side 10 ⁇ / b> B without the stepped portion 50 to seal the liquid layer 16.
  • a seal member 32 may be provided.
  • FIG. 8 shows the glass plate structure 10 of the third embodiment of the present invention
  • FIG. 8 (a) is a plan view of the glass plate structure of the third embodiment of the present invention
  • FIG. 8B is a cross-sectional view taken along the line II in FIG. In 2nd Embodiment of FIG. 8, the level
  • the amount of the sealing material 31 can be reduced as compared with the first and second embodiments.
  • a seal tape 40 is affixed to the two sides 10 ⁇ / b> A and 10 ⁇ / b> B without the stepped portion 50 to seal the liquid layer 16.
  • a seal member 32 may be provided.
  • FIG. 9 shows a glass plate assembly 10 according to the fourth embodiment of the present invention
  • FIG. 9A is a plan view of the glass plate assembly according to the fourth embodiment of the present invention
  • FIG. 9B is a cross-sectional view taken along the line II in FIG.
  • This embodiment is similar to the second embodiment of FIG. 7, but the width of the sealing material 31 is not wide on one side 10 ⁇ / b> A among the three sides, and is almost the same as the width on the other side.
  • a seal tape 40 is affixed to the side 10 ⁇ / b> B without the stepped portion 50 to seal the liquid layer 16.
  • a seal member 32 may be provided.
  • FIG. 10 shows the glass plate structure 10 of the fifth embodiment of the present invention
  • FIG. 10 (a) is a plan view of the glass plate structure of the fifth embodiment of the present invention
  • FIG. 10B is a cross-sectional view taken along the line II in FIG.
  • the stepped portion 50 and the sealing material 31 are not provided at the peripheral edge of the glass plate constituting body 10 but are provided at substantially the center of the glass plate constituting body 10 in plan view. ing.
  • Such a configuration also satisfies the requirement that the end surfaces of the two plates (the first plate 11 and the second plate 12) are displaced from each other. And the intensity
  • a sealing tape 40 is affixed to the peripheral end surface of the glass plate structure 10 to seal the liquid layer 16.
  • FIG. 11 shows the glass plate structure 10 of the sixth embodiment of the present invention
  • FIG. 11 (a) is a plan view of the glass plate structure of the sixth embodiment of the present invention
  • FIG. 11B is a cross-sectional view taken along the line II in FIG.
  • the sealing material 31 is provided on two opposite sides of the glass plate constituting body 10 and on the opposite surface. Even in such a configuration, the strength of the glass plate structure 10 can be improved.
  • a seal tape 40 is affixed to the two sides 10 ⁇ / b> A and 10 ⁇ / b> B without the stepped portion 50 to seal the liquid layer 16.
  • a seal member 32 may be provided.
  • FIG. 12 shows the glass plate structure 10 of the seventh embodiment of the present invention
  • FIG. 12 (a) is a plan view of the glass plate structure of the seventh embodiment of the present invention
  • FIG. 12B is a cross-sectional view taken along the line II in FIG.
  • the second plate 12 is a glass plate, but is a glass plate made of laminated glass.
  • a laminated glass refers to a combination of a plurality of glass plates, but in the present invention, it is handled as an integrated plate.
  • a glass plate configuration including at least two plates and a liquid layer held between the two plates, wherein at least one of the two plates is a glass plate The “body” itself is not included in the laminated glass in the present invention.
  • the laminated glass is configured such that an intermediate layer 12c made of a resin or the like is sandwiched between the first glass 12A and the second glass 12B. Even in such a configuration, the strength of the glass plate structure 10 can be improved.
  • a seal tape 40 is affixed to the two sides 10 ⁇ / b> A and 10 ⁇ / b> B without the stepped portion 50 to seal the liquid layer 16. Instead of the seal tape 40, a seal member 32 may be provided.
  • FIG. 13 shows the glass plate structure 10 of the eighth embodiment of the present invention
  • FIG. 13 (a) is a plan view of the glass plate structure of the eighth embodiment of the present invention
  • FIG. FIG. 13B is a cross-sectional view taken along the line II in FIG.
  • the glass plate structure 10 is formed in a circular shape in a plan view instead of a rectangle (square or rectangular) in a plan view as in the other embodiments.
  • Other configurations are the same as those of the other embodiments.
  • the size is not limited, but it is possible to configure a large glass plate structure having an outer circumference length of 1 m or more, for example.
  • the step portion 50 can be said to be a non-laminated portion where the two plates (the first plate 11 and the second plate 12) do not overlap.
  • the area of the non-laminated portion in plan view is desirably set to a ratio of 0.1% or more and 20% or less with respect to the area of the laminated portion where the two plates overlap. If the ratio is less than 1%, the sealing area may be insufficient, and if it is more than 20%, the resonance suppression effect may be reduced.
  • the glass plate structure of the present invention is configured by laminating two plates (the first plate 11 and the second plate 12) having a predetermined relationship, but as long as the step portion can be formed, There are various predetermined relationships here.
  • a typical example is one using two plates having different outer diameter sizes.
  • the stepped portion can be formed even if two plates having different shapes are used.
  • the stepped portion can be formed by being shifted from each other.
  • a stepped portion having a stepped shape is formed by arranging the end surfaces of the two plates so as to be shifted, and a sealing material is provided so as to seal the liquid layer at the stepped portion.
  • FIG. 14 shows an example of a chamfered portion formed by chamfering the end surface 11a.
  • 14A shows an example of a chamfered portion of the end surface 11a subjected to the R chamfer 11a1
  • FIG. 14B shows an example of a chamfered portion of the end surface 11a subjected to the oblique chamfer 11a2.
  • the sealing material 31 can be attached so as to be in close contact with the chamfered portion subjected to such processing. In the example of FIG. 14A, the sealing material 31 is filled between the chamfered portion and the second plate 12.
  • FIG. 15 shows a modification of the step portion 50.
  • FIG. 15A shows an example in which the sealing material 31 has an extension portion 31 b extended so as to enter between the first plate 11 and the second plate 12.
  • the extension portion 31 b is formed by controlling the curing process so that the sealing material enters the first plate 11 and the second plate 12. be able to.
  • FIG. 15B shows an example in which two oblique chamfers are applied to the end surface 11 a of the first plate 11. In this example, in addition to the first oblique chamfer 11a2 similar to the oblique chamfer of FIG.
  • a second oblique chamfer 11a3 inclined in the opposite direction to the first oblique chamfer 11a2 is formed.
  • the sealing material 31 is filled below the second chamfer 11 a 3 and above the second plate 12.
  • the end face of the second plate 12 is rounded as shown in FIG.
  • the sealing materials in the following Examples 1 to 5 have an outline extending in an L shape in a cross-sectional view, and the L shape angle of the L shape is a right angle (90 °).
  • a glass plate A having a size of 110 mm ⁇ 110 mm ⁇ 0.5 mm is prepared as the second plate, which is the substrate 1, and a dispenser (manufactured by Musashi Engineering; SHOTMASTER 400DS-s) is used, and a silicone having a viscosity coefficient of 3000 mPa ⁇ s is used as a liquid layer. Oil (manufactured by Shin-Etsu Chemical Co., Ltd .; KF-96) was applied. Further, a glass plate B of 100 mm ⁇ 100 mm ⁇ 0.5 mm was brought into close contact with the center portion of the glass plate A as the first plate as the substrate 2 and bonded so that the liquid thickness became 3 ⁇ m.
  • positioned so that the position of all the end surfaces of the said 2 glass plate might become inconsistent was obtained.
  • a UV curable resin manufactured by Kyoritsu Chemical Co., Ltd .; XVL-14
  • the unbonded part was cut
  • the composition (mass%) and physical property values of glass plate A and glass plate B are shown below.
  • the protrusion amount at the step portion is 1.5 mm.
  • Glass plate A SiO 2: 61.5%, Al 2 O 3: 20%, B 2 O 3: 1.5%, MgO: 5.5%, CaO: 4.5%, SrO: 7%, Density: 2.7 g / cm 3 , Young's modulus: 85 GPa, specific elastic modulus: 3.2 ⁇ 10 7 m 2 / s 2
  • Glass plate B SiO 2 : 60%, Al 2 O 3 : 17%, B 2 O 3 : 8%, MgO: 3%, CaO: 4%, SrO: 8%, density: 2.5 g / cm 3 Young's modulus: 77 GPa, specific modulus: 3.1 ⁇ 10 7 m 2 / s 2
  • Example 2 A glass plate structure was obtained in the same manner as in Example 1 except that the glass plate A was changed to an acrylic resin substrate of 110 mm ⁇ 110 mm ⁇ 0.5 mm.
  • Example 3 A glass plate A of 100 mm ⁇ 100 mm ⁇ 0.5 mm is prepared, and a dispenser (manufactured by Musashi Engineering; SHOTMASTER400DS-s) is used, and a silicone oil having a viscosity coefficient of 3000 mPa ⁇ s as a liquid layer (manufactured by Shin-Etsu Chemical; KF-96) ) was provided 5 mm wide from the end and applied uniformly. Further, a UV curable resin (manufactured by Kyoritsu Chemical Co., Ltd .; XVL-14) was applied to the end of the glass plate A with a line width of about 2 mm.
  • a dispenser manufactured by Musashi Engineering; SHOTMASTER400DS-s
  • a silicone oil having a viscosity coefficient of 3000 mPa ⁇ s as a liquid layer manufactured by Shin-Etsu Chemical; KF-96
  • a UV curable resin manufactured by Kyoritsu Chemical Co., Ltd .
  • a glass plate B of 100 mm ⁇ 100 mm ⁇ 0.5 mm as the first plate as the substrate 2 is brought into close contact with the central portion of the glass plate A in a state offset by 1 mm in the vertical and horizontal directions, and the liquid thickness is Bonding was performed under reduced pressure so as to have a thickness of 3 ⁇ m.
  • positioned so that the position of all the end surfaces of the said 2 glass plate might become inconsistent was obtained.
  • the resin was cured by irradiating the glass composition with UV.
  • step-difference part was formed with UV hardening resin which protruded from the edge part.
  • the protrusion amount at the step portion is 1.0 mm.
  • a glass plate A having a size of 100 mm ⁇ 100 mm ⁇ 0.5 mm is prepared as the second plate, which is the substrate 1, and a dispenser (manufactured by Musashi Engineering; SHOTMASTER 400DS-s) is used, and a silicone having a viscosity coefficient of 3000 mPa ⁇ s is used as a liquid layer. Oil (manufactured by Shin-Etsu Chemical Co., Ltd .; KF-96) was provided with a play having a width of 5 mm from the end and applied uniformly.
  • a UV curable resin manufactured by Kyoritsu Chemical Co., Ltd .; XVL-14
  • a glass plate B of 100 mm ⁇ 100 mm ⁇ 0.5 mm is placed at the center of the glass plate A as the first plate as the substrate 2, and the glass A and the lower side of the glass B are shifted so as to form an angle of 1 degree. Then, they were stuck together under reduced pressure so that the liquid thickness was 3 ⁇ m. Thereby, the glass laminated body arrange
  • the resin was cured by irradiating the glass composition with UV.
  • step-difference part was formed with UV hardening resin which protruded from the edge part.
  • a glass plate A having a size of 100 mm ⁇ 100 mm ⁇ 0.5 mm is prepared as the second plate, which is the substrate 1, and a dispenser (manufactured by Musashi Engineering; SHOTMASTER 400DS-s) is used, and a silicone having a viscosity coefficient of 3000 mPa ⁇ s is used as a liquid layer. Oil (manufactured by Shin-Etsu Chemical Co., Ltd .; KF-96) was provided with a play having a width of 5 mm from the end and applied uniformly.
  • a UV curable resin manufactured by Kyoritsu Chemical Co., Ltd .; XVL-14 was applied to the end of the glass plate A with a line width of about 2 mm.
  • the glass A and the glass B were adhered in a state where the positions of the centers of gravity coincided and bonded under reduced pressure so that the liquid thickness became 3 ⁇ m.
  • positioned so that the position of the end surface two sides of the said 2 glass plate might become inconsistent was obtained.
  • the resin was cured by irradiating the glass composition with UV.
  • step-difference part was formed with UV hardening resin which protruded from the edge part.
  • a glass plate of 100 mm ⁇ 100 mm ⁇ 0.5 mm is prepared as the glass plate A, a dispenser (manufactured by Musashi Engineering; SHOTMASTER 400DS-s) is used, and a silicone oil having a viscosity coefficient of 3000 mPa ⁇ s as a liquid layer (manufactured by Shin-Etsu Chemical Co., Ltd .; KF-96) was applied. Further, a glass plate of 100 mm ⁇ 100 mm ⁇ 0.5 mm was brought into close contact with the central portion of the glass plate A as the glass plate B, and the ends were aligned and bonded so that the liquid thickness became 3 ⁇ m.
  • a glass plate of 100 mm ⁇ 100 mm ⁇ 0.5 mm is prepared as the glass plate A, a dispenser (manufactured by Musashi Engineering; SHOTMASTER 400DS-s) is used, and a silicone oil having a viscosity coefficient of 3000 mPa ⁇ s as a liquid layer (manufactured by Shin-Etsu Chemical Co., Ltd .; KF-96) was applied, and a UV curable resin (manufactured by Kyoritsu Chemical; XVL-14) was applied to the periphery of the substrate using a dispenser.
  • a dispenser manufactured by Musashi Engineering; SHOTMASTER 400DS-s
  • a silicone oil having a viscosity coefficient of 3000 mPa ⁇ s as a liquid layer manufactured by Shin-Etsu Chemical Co., Ltd .; KF-96
  • a UV curable resin manufactured by Kyoritsu Chemical; XVL-14
  • a glass plate B a glass plate of 100 mm ⁇ 100 mm ⁇ 0.5 mm was brought into close contact with the central portion of the glass plate A, and the UV curable resin was added after vacuum-bonding with the ends aligned so that the liquid thickness was 3 ⁇ m. Cured.
  • Comparative Example 2 of a glass plate structure having no step portion and having an in-plane seal was obtained.
  • Comparative Example 3 As Comparative Example 3, a silica glass single plate of 100 mm ⁇ 100 mm ⁇ 1.0 mm was used.
  • Comparative example 4 As Comparative Example 4, an acrylic resin single plate of 100 mm ⁇ 100 mm ⁇ 1.0 mm was used.
  • ⁇ Evaluation method> Young's modulus, longitudinal wave velocity, density
  • the Young's modulus E and sound velocity V of the glass plate structures and single plates of Example 1 to Comparative Example 4 were measured using Japanese Industrial Standards (JIS-) using test pieces having a length of 100 mm, a width of 100 mm, and a thickness of 0.5 mm to 1 mm. R1602-1995), and measured at 25 ° C. (using Olympus DL35PLUS).
  • the longitudinal wave sound velocity value of the glass plate structure was measured by measuring the sound velocity in the plate thickness direction.
  • the density ⁇ of the glass plate was measured at 25 ° C. by the Archimedes method (Shimadzu Corporation, AUX320).
  • the resonance frequency of the glass plate and the glass plate structure is a vibrator (manufactured by Labworks) at the center of the lower surface of a test substrate (glass plate structure or single plate) having a length of 100 to 103 mm, a width of 100 to 103 mm, and a thickness of 1 mm; ET139) is connected, and the response when a sinusoidal vibration in the band of 30 Hz to 10000 Hz is applied to the test piece in an environment of a temperature of 25 ° C. is detected by an acceleration pickup installed at the center of the upper surface of the test substrate, and FFT is performed.
  • Frequency response characteristics were analyzed with an analyzer (DS-3000, manufactured by Ono Sokki Co., Ltd.). The frequency at which the vibration amplitude h is maximized was defined as the resonance frequency f.
  • the loss factor is a point that is ⁇ 3 dB lower than the resonance frequency f and the maximum amplitude h of the material obtained by the above measurement (that is, the maximum amplitude ⁇ 3 [dB ] And the attenuation value represented by W / f was used for evaluation.
  • Viscosity coefficient The viscosity coefficient of the silicone oil used in the liquid layer was measured at 25 ° C. using a rotational viscometer (BROOKFIELD, RVDV-E).
  • the longitudinal wave sound velocity value is 6.0 ⁇ 10 3 m / s or more and the attenuation value at 25 ° C. is 7 ⁇ 10. -2 or less. Further, in the peel strength evaluation, since the glass plate was broken first, the performance was excellent in both acoustic performance and peel strength.
  • the longitudinal wave sound velocity value of the glass plate is 6.0 ⁇ 10 3 m / s or more and the attenuation value at 25 ° C. was 1.1 ⁇ 10 ⁇ 1 or more.
  • the peel strength evaluation since the glass plate was broken first, it showed excellent performance in both acoustic performance and peel strength.
  • the longitudinal wave sound velocity value is 6.0 ⁇ 10 3 m / s or more and the attenuation value at 25 ° C. is 7 ⁇ 10 ⁇ 2 or less.
  • the peel strength was significantly lower at 20 N / 25 mm, and the performance was inferior in terms of peel strength compared to the configuration of the examples.
  • the glass plate structure according to the present invention has a large longitudinal wave sound velocity value, a large loss coefficient, and an improved strength. Therefore, it can be suitably used for a diaphragm used for a speaker, a microphone, an earphone, a mobile device, an opening member for construction and vehicles, and the like.

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  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

Une construction de plaque de verre comprend au moins deux plaques et une couche de liquide maintenue entre les deux plaques, au moins l'une des deux plaques étant une plaque de verre. La construction de plaque de verre constitue une partie étagée qui présente une forme d'escalier dans une vue en coupe transversale en raison du fait que les faces d'extrémité de chacune des deux plaques sont agencées de façon non alignée, et comprend en outre un matériau d'étanchéité disposé de façon à sceller de manière étanche au moins la couche de liquide dans la partie étagée.
PCT/JP2018/006321 2017-02-23 2018-02-21 Construction de plaque de verre WO2018155518A1 (fr)

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EP18758446.1A EP3588976A4 (fr) 2017-02-23 2018-02-21 Construction de plaque de verre
CN201880012829.XA CN110313185B (zh) 2017-02-23 2018-02-21 玻璃板结构体
JP2019501391A JPWO2018155518A1 (ja) 2017-02-23 2018-02-21 ガラス板構成体
US16/549,040 US11122370B2 (en) 2017-02-23 2019-08-23 Glass sheet composite
JP2022003151A JP7231071B2 (ja) 2017-02-23 2022-01-12 振動板

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JP2017032650 2017-02-23
JP2017-032650 2017-02-23

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US16/549,040 Continuation US11122370B2 (en) 2017-02-23 2019-08-23 Glass sheet composite

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EP (1) EP3588976A4 (fr)
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EP3442244A4 (fr) * 2016-04-05 2019-07-24 Agc Inc. Constituant de plaque de verre
US11472161B2 (en) 2016-04-05 2022-10-18 AGC Inc. Glass sheet composite
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CN109451146A (zh) * 2018-10-15 2019-03-08 维沃移动通信有限公司 一种振动处理方法及终端
WO2023063370A1 (fr) * 2021-10-15 2023-04-20 Ａｇｃ株式会社 Membrane en verre, procédé de fabrication d'une membrane en verre, membrane en verre dotée d'un excitateur, membrane pour véhicule et membrane pour bâtiment
WO2023068311A1 (fr) * 2021-10-22 2023-04-27 Ａｇｃ株式会社 Diaphragme en verre, diaphragme en verre avec excitateur, et verre de fenêtre de véhicule
WO2023068310A1 (fr) * 2021-10-22 2023-04-27 Ａｇｃ株式会社 Membrane en verre, membrane en verre dotée d'un excitateur et vitre de véhicule

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JP2022050594A (ja) 2022-03-30
JPWO2018155518A1 (ja) 2019-12-19
US11122370B2 (en) 2021-09-14
EP3588976A1 (fr) 2020-01-01
EP3588976A4 (fr) 2020-12-30
CN110313185A (zh) 2019-10-08
CN110313185B (zh) 2021-07-27
US20190387322A1 (en) 2019-12-19
JP7231071B2 (ja) 2023-03-01

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